forked from AuroraMiddleware/gtk
7ccb9db79e
Instead of relying on GScanner and its idea of syntax, code up a parser that obeys the CSS spec. This also has the great side effect of reporting correct line numbers and positions. Also included is a reorganization of the returned error values. Instead of error values describing what type of syntax error was returned, the code just returns SYNTAX_ERROR. Other messages exist for when actual values don't work or when errors shouldn't be fatal due to backwards compatibility.
86 lines
4.5 KiB
C
86 lines
4.5 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2011 Benjamin Otte <otte@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GTK_CSS_PARSER_PRIVATE_H__
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#define __GTK_CSS_PARSER_PRIVATE_H__
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#include <gtk/gtksymboliccolor.h>
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G_BEGIN_DECLS
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typedef struct _GtkCssParser GtkCssParser;
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typedef void (* GtkCssParserErrorFunc) (GtkCssParser *parser,
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const GError *error,
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gpointer user_data);
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GtkCssParser * _gtk_css_parser_new (const char *data,
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GtkCssParserErrorFunc error_func,
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gpointer user_data);
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void _gtk_css_parser_free (GtkCssParser *parser);
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void _gtk_css_parser_error (GtkCssParser *parser,
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const char *format,
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...) G_GNUC_PRINTF (2, 3);
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guint _gtk_css_parser_get_line (GtkCssParser *parser);
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guint _gtk_css_parser_get_position (GtkCssParser *parser);
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gboolean _gtk_css_parser_is_eof (GtkCssParser *parser);
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gboolean _gtk_css_parser_begins_with (GtkCssParser *parser,
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char c);
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gboolean _gtk_css_parser_is_string (GtkCssParser *parser);
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/* IMPORTANT:
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* _try_foo() functions do not modify the data pointer if they fail, nor do they
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* signal an error. _read_foo() will modify the data pointer and position it at
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* the first token that is broken and emit an error about the failure.
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* So only call _read_foo() when you know that you are reading a foo. _try_foo()
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* however is fine to call if you don't know yet if the token is a foo or a bar,
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* you can _try_bar() if try_foo() failed.
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*/
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gboolean _gtk_css_parser_try (GtkCssParser *parser,
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const char *string,
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gboolean skip_whitespace);
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char * _gtk_css_parser_try_ident (GtkCssParser *parser,
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gboolean skip_whitespace);
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char * _gtk_css_parser_try_name (GtkCssParser *parser,
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gboolean skip_whitespace);
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gboolean _gtk_css_parser_try_int (GtkCssParser *parser,
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int *value);
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gboolean _gtk_css_parser_try_uint (GtkCssParser *parser,
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uint *value);
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gboolean _gtk_css_parser_try_double (GtkCssParser *parser,
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gdouble *value);
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void _gtk_css_parser_skip_whitespace (GtkCssParser *parser);
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char * _gtk_css_parser_read_string (GtkCssParser *parser);
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char * _gtk_css_parser_read_uri (GtkCssParser *parser);
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char * _gtk_css_parser_read_value (GtkCssParser *parser);
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GtkSymbolicColor *_gtk_css_parser_read_symbolic_color
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(GtkCssParser *parser);
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void _gtk_css_parser_resync (GtkCssParser *parser,
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gboolean sync_at_semicolon,
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char terminator);
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G_END_DECLS
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#endif /* __GTK_CSS_PARSER_PRIVATE_H__ */
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